2023-07-10

Expansion graphite, a new multifunctional insulation material

Expansion graphite is a kind of graphite that can expand and shrink in high temperature environments. This material has very special physical and chemical properties. Graphite is a kind of carbon, and its structure is connected by hexagonal carbon atoms. Generally, graphite can be completely melted, but at high temperature, due to the enhancement of the interaction between carbon atoms, graphite can form more stable stability The structure of the expansion is achieved.1. The development of expansion graphiteThe development of expansion graphite dates back to the 1960s. At that time, scientists discovered that graphite can be deformed regularly within a certain temperature range, and the translucent graphite can remain stable. Subsequently, scientists also found that under certain conditions, graphite at high temperature can be used to create a variety of structures, and these structures can be used to support greater weight and develop the technology of expanding graphite.Second, the

2023-02-08

Graphite flotation method

Floating is a commonly used and important mineral method. Graphite has good natural floating. Basically, all graphite can be purified by floating methods. In order to protect graphite scales, most of the graphite flotation uses multiple sections of processes. Graphite flotation collecting agents are generally used for kerosene, with a dosage of 100 to 200g/t. The foaming agent is generally used with pine or butad ether, and the amount is 50 to 250g/t.

What are the characteristics of the thermal stability of the film -shaped graphite

Sheet -shaped graphite is a natural ore, with a thin piece or scale, and the aggregate is in the form of soil. It is a hidden crystal. Film graphite has many high -quality physical and chemical characteristics, including good thermal stability. Compared with other products, the thermal stability of film -like graphite has great advantages.Film graphite is one of the most high -temperature -resistant materials at present. Generally, the strength of the material is gradually decreased at high temperature. However, when heating to 2,000 degrees Celsius, the strength of the sheet -shaped graphite is twice the temperature at room temperature.Sheet -shaped graphite has excellent heat shock resistance. When the temperature suddenly changes, the thermal expansion coefficient is small, so it has good thermal stability. When the temperature changes rapidly, cracks will not occur.Sheet -shaped graphite is a material with excellent thermal shock. For graphite electrodes used in electric furnace s

2023-07-20

Some related knowledge points of high pure graphite?

The applicable areas of high pure graphite include metallurgical, military, light industry, electrical battery industry, and fertilizer. It can be called high -purity graphite. In order to make more people familiar with it, here is some of the relevant knowledge points of Gao Chun graphite? I hope you can bring some better ones when you see it. Help.High -pure graphite is widely used in metallurgy, machinery, environmental protection, chemical, electronics, medicine, military, military and aerospace and other fields. Has high -purity, high -intensity graphite performance. In fact, the existence of graphite scales now makes graphite have excellent lubrication. Generally speaking, the larger the ordinary graphite scales, the better the lubricity. When we use it, we need to know that the graphite industry technology is still at a low level in the world. The products are mainly raw materials and initial processing products. Therefore, the high impurities of some products have limited its

2023-04-12

Graphite mold accessories are getting higher and higher

Graphite mold accessories may become higher and higher for high precision regulations. Ten years ago, the precision of precision machinery manufacturing was generally 5 microns. Now it has achieved 2 ~ 3 μm, and the precision of 1 micron precision will be released. This specifies ultra -deep processing. Mobei Industry Chain will be replaced with increasingly importing. This is also caused by the increasingly imported alternative and high productivity regulations of Moden. The multi -purpose compound shell of the machinery processing industry will further develop. In addition to the forming parts of the stamping mold, the new multi -purpose composite mold shellfish also shoulders the daily tasks such as stacking, attacking, riveting and card tightness, and the characteristics of stainless steel plates are also higher and higher.Graphite molds are complete and diverse. Because of its excellent comprehensive ability, you can see it everywhere.

2023-12-13

What are the reasons for the low initial efficiency of lithium carbide graphite negative electrodes

1. Low specific surface area: As you mentioned, the specific surface area of waste graphite is usually low, which leads to a decrease in the contact area between the electrolyte and graphite, affecting ion insertion and extraction during the initial charge and discharge process, thereby reducing the initial Coulombic efficiency. Compaction and coating treatment can increas

2023-08-21

High power and ultra high power electrodes

The characteristic of high-power and ultra-high-power electrodes is low resistivity, allowing for a current load of 25% -40% higher than that of ordinary electrodes; The allowable current density is greater than twice; Low coefficient of thermal expansion; High flexural strength; Low oxidation loss. The production of high-power and ultra-high-power electrodes uses needle coke as the raw material, and multiple impregnations are used in the production process to increase the graphitization temperature, and corresponding improvements are made to the bonding and impregnating agents.The requirements for ultra-high power graphite electrodes are relatively strict. The volume density of the electrode reaches 1.72g/cm3; The resistivity drops to 5-7 Ω. mX10-6. Due to the fact that the current density allowed by ultra-high power is more than twice that of ordinary electrodes, the thermal stress and impact it bears increase. Therefore, the electrode requires a low coefficient of thermal expansion

2023-05-10

What is the market development prospect of spherical graphite?

Graphite is one of the better minerals in my country. This new type of natural graphite material produced and processed by new technology has played a key role in various industries such as electronic devices, chemical factories, light industry, military industry enterprises, national defense safety, aerospace and other industries. The spherical graphite is based on high -quality high -carbon steel natural scales graphite as the raw material. It uses advanced manufacturing processes to modify the surface of graphite to produce graphite products with different fineness and near -ellipse spherical.First: Graphite is divided into crystal graphite (shell -like) and hidden crystal graphite (soil) according to the crystal degree. Ballog graphite is suitable for spherical or spherical graphite products processed by mechanical and physical methods with natural scale graphite. It emphasizes that the physical and chemical performance of natural graphite should meet the following requirements:Se

2023-12-05

Explain in detail the uses of flake graphite?

Scale graphite is also very common in our daily lives. Because its advantages are quite prominent, there are also many people who choose to use it. Today, I also take this opportunity to introduce to you the uses of flake graphite? If you want to know, come and take a look quickly.Flake graphite is a natural graphite ore with a shape similar to fish scales, and is a hexagonal crystal with a layered structure. Now this product has good acid and alkali resistance, high temperature resistance, conductivity, thermal conductivity, and lubrication performance. Refractory materials and coatings widely used in the smelting industry. Stabilizers for military fireworks such as magnesia carbon bricks and crucibles, desulfurization promoters for the smelting industry, pencil leads, carbon brushes for the electrical industry, electrodes in batteries, catalysts for the chemical industry, etc. Lubricants, release agents, drawing agents, conductive coatings, etc. Flake graphite has a lubricating effe

2023-12-22

Safety risks of graphite electrodes, high-purity graphite, and graphite anode plates under high-temperature oxidation